
///蓝牙连接回调接口
abstract class OnBleConnectListener{

  ///开始连接
  void onStartConnect(String address);
  ///连接失败
  void onConnected(String address);
  ///连接成功
  void onDisconnected(String address);
  ///mtu改变
  void onMtuChanged(String address,int mtu);
}